partial void UpdateProducts(Products instance);
 partial void DeleteProducts(Products instance);
 partial void InsertProducts(Products instance);
 private void detach_Products(Products entity)
 {
     this.SendPropertyChanging();
     entity.Categories = null;
 }
 private void attach_Products(Products entity)
 {
     this.SendPropertyChanging();
     entity.Categories = this;
 }
 private void detach_Products(Products entity)
 {
     this.SendPropertyChanging();
     entity.Suppliers = null;
 }
 private void attach_Products(Products entity)
 {
     this.SendPropertyChanging();
     entity.Suppliers = this;
 }